Results 271 to 280 of about 30,682 (295)

Investigation of the Flame Stabilization Mechanism in Phase-Inhomogeneous Air—Fuel Mixtures

Russian Aeronautics, 2020
The mechanism of flame stabilization in phase-inhomogeneous air—fuel mixtures is considered. A method is proposed for refining the thermal theory of flame stabilization by taking into account the heat consumed for heating and evaporation liquid fuel in the ignition zone.
B. G. Mingazov, T. Kh. Mukhametgaliev
openaire   +1 more source

A Study of Air-Fuel Mixture Formation in Direct-Injection SI Engines

SAE Technical Paper Series, 2004
<div class="htmlview paragraph">An investigation was made into two approaches to air-fuel mixture formation in direct injection SI engines in which charge stratification is controlled by swirl or tumble gas motions, respectively. Particle image velocimetry (PIV), laser-induced fluorescence (LIF) and air-fuel ratio measurement by infrared ...
Akihiko Kakuho, Koichi Yamaguchi, Yutaka Hashizume, Tomonori Urushihara, Teruyuki Itoh, Eiji Tomita   +5 more
openaire   +1 more source

Effects of Opening and Closing Fuel-Injector Valve on Air/Fuel Mixture

Journal of Engineering for Gas Turbines and Power, 2016
Lower engine emissions like CO2, particulate matter (PM), and NOx have recently become more necessary in automobile engines to protect the earth's environment. Keeping uniformity of air/fuel mixture and decreasing fuel adhesion on walls of cylinder and piston are effective in order to reduce the engine emissions.
Eiji Ishii, Kazuki Yoshimura, Yoshihito Yasukawa, Hideharu Ehara   +3 more
openaire   +1 more source

Flame propagation through an air-fuel spray mixture with transient droplet vaporization

Combustion and Flame, 1980
Flame initiation and propagation through an air/fuel vapor/fuel drop system is numerically modeled in a cylindrical one-dimensional closed combustor. An unsteady formulation of the flow problem eliminates the cold-boundary difficulty and gas-phase ignition problem.
B SETH, S AGGARWAL, W SIRIGNANO
openaire   +1 more source

Seismic Effect Produced by Detonation of Air-Fuel Mixture in a Borehole

Journal of Mining Science, 2003
Using laboratory, field, and numerical experiments, it is shown that detonation of air-fuel mixture in borehole located in dense rocks is an effective method for generating the transverse seismic wave. Different operation regimes are investigated, and the seismic efficiency is determined for the method in question.
G. G. Kocharyan, A. M. Budkov, E. A. Vinogradov, N. V. Kabychenko, V. N. Kostyuchenko, D. V. Pavlov, I. S. Svintsov   +6 more
openaire   +1 more source

Study of Air-Fuel Mixture Preparation in a Single Cylinder SI Engine

SAE Technical Paper Series, 2010
<div class="section abstract"><div class="htmlview paragraph">Engine operation at low temperatures is of considerable interest from the standpoint of exhaust gas emissions and fuel economy. A semi-empirical film model is developed to study the transient cold starting process.
Balasubramanian Thiruvallur Loganathan, Shamit Bakshi PhD, Ghodeswar Dinesh   +2 more
openaire   +1 more source

Operation of anode-supported solid oxide fuel cells on propane–air fuel mixtures

Applied Catalysis A: General, 2004
Abstract Operation of anode-supported solid oxide fuel cells (SOFCs) on propane–air fuel mixtures was studied. A thermodynamic calculation was used to show that propane is partially oxidized without coking for oxygen-to-propane ratios >1.75 and T>733 °C.
Zhongliang Zhan, Jiang Liu, Scott A Barnett   +2 more
openaire   +1 more source

Measurement of Air-Fuel Mixture Distribution in a Gasoline Engine Using LIEF Technique

SAE Technical Paper Series, 1992
<div class="htmlview paragraph">The laser-induced exciplex fluorescence (LIEF) technique, currently used to observe mixture formation in a diesel engine, has been applied to a spark ignition (SI) engine and a new equivalence ratio calibration technique has been developed in order that two-dimensional measurements of the equivalence ratio may be ...
Rio Shimizu, Seiichi Matumoto, Shigeo Furuno, Motohide Murayama, Shinji Kojima   +4 more
openaire   +1 more source

Computational Study of the Air/Fuel Mixture in a Small Spark Ignition Engine

Volume 2: 27th Computers and Information in Engineering Conference, Parts A and B, 2007
In an effort to understand the fluid dynamics in the droplet formation process, during the fuel delivery portion of operation of a small spark ignition engine, a computational study of the process was undertaken. A combination of high-speed photography and Computational Fluid Dynamics was used to investigate the droplet formation process.
Suzanne Caulfield, Ryo S. Amano
openaire   +1 more source

Analysis of the Air-Fuel Mixture Control in Natural Gas Fuelled Turbocharged Engines

ASME 2008 Internal Combustion Engine Division Spring Technical Conference, 2008
The use of natural gas in medium and heavy duty engines for public transportation is a promising way for reducing exhaust emissions. Computer simulations, coupled with engine tests, have arisen as a valuable methodology to study the gas exchange processes inside intake and exhaust manifolds.
Francisco Payri, Jose Galindo, Jose Manuel Luja´n, He´ctor Climent   +3 more
openaire   +1 more source